Bobbin-holder.



I. SNOW.

BOBBIN HOLDER.

APPLICATION FILED MAY22,1913,

LIQQ QQSD Patented May 18, 1915,

IN V EN TOR.

A TTORNE Y.

ISAAC SNOW, 0F LAWRENCE, MASSACHUSETTS.

BOBBIN-HOLDER.

Specification of Letters Patent.

Patented May 18, 1915.

Application filed May 22, 1913. Serial No. 769,247.

To r lzomit may concern.

lie it known that I, Isaac Snow, a citizen of the United States. residing at Lawrence, in the county of Essex and State of Massachusetts, have invented certain new and useful Improvements in Bobbin-Holders. of which the following is a specification.

My invention relates to shuttles for looms and particularly concerns the bobbin holders or bobbin retainers by which the bobbin is firmly held in position therein. It may be used in connection with a shuttle in which is a spindle, or one type may be used in a shuttle wherein no spindle is used. The principal purpose of my device is to firmly hold the bobbin in place and in proper alinement in the shuttle. It may also be easily and cheaply manufactured.

Figure 1 is a vertical side section of a shuttle with my holder. Fig. 2 is a section from the left of line QP of Fig. 1. Fig. 3 is a detail in elevation of parts shown in Fig. 2. Fig. 4 is a partial section on line B S of Fig. 3. Fig. 5 1s a plan view of a shuttle with my holder in place. Fig. 6 is the blank from which it is stamped. Fig. 7 is a perspective View of a modified form. Figs. 8 and 9 are fragmentary views showing the slots in modified forms.

F is a shuttle and E is a bobbin while G is my bobbin holder. This holder is adapted to fit a shuttle F which must beso cut away that as shown at 50, it will fit the curved portion of the bobbin holder G. This bobbin holder is stamped out of sheet metal in the form of the blank shown in Fig. 6. It is somewhat in the form of a cross of which one branch is a holding member 51 and is bent over and around as shown in Fig. 1 to fit the wood of the shuttle. branch has screw holes 52 for the holding screws 53. The middle portion 54 is substantially not bent while the tail piece 55 which is a continuation of the holding branch is bent down and under so that the members 51. 5 c and 55 fit around the portion 50 of shuttle F formed to receive them. The side branches 56 and 57 are bent backward and then forward parallel. with each other as shown in Fig. 5. Their ends are. preferably stamped into curves which about conform to the base of the bobbin and have transverse slots 58 and 59. These slots 58 and 59 are of just the width or a. trifle more than the width of the thickness of the rings 43 and the edges of branches 56 and 57 ad- This holding joining the ends of slots 58 and 59 are bent sharply backward while the end of slots 58 and 59 are so cut that they exactly fit rings 43. As rings 43 are set well into the slots preferably almost half their thickness and fit snugly there can be no longitudinal slipping oi the bobbin and as the ends of the slots also exactly fit the rings, there is no chance for up and down displacement of the bobbin. As this type of bobbin holder is used in a shuttle where there is no spindle, it is highly important that the bobbin should be rigid for if it gets out of alinement with the axis of the shuttle, it is apt to protrude and catch in the warp. I may cut tapering ring directing grooves 91 in the metal at the top and bottom of each branch 56 and 57 to assist in directing the bobbin rings into the slots.

The middle portion 97, corresponding to 54. as shown in Fig. 1' may be bent at an angle or about forty-five degrees and may have a base directing slot 98 cut through it to help direct the base of the bobbin down between the side branches.

As shown in Fig. 8, one slot 80 instead of a plurality of slots may be used. of such width as to receive all the rings 86 on the bobbin so that the outside of the outer rings 86 will fit snugly inside thereof, the ends being cut in one or more curves 8]., 82 to fit each individual ring. Or as shown in Fig. 9, one slot 83 of a width to receive all the rings of the bobbin so that the outside of the outer rings 8'7 will fit snugly therein and so cut at theends that the end 84 will bear against one point on each ring may be used.

My device in each case is cut or stamped from elastic sheet metal and the slots in its clasping member or members are deep enough to receive the bobbin rings to a depth sufficient to prevent them from slipping out sidewise. while the ends of the slots are also cut to closely fit the bobbin rings and are preferably bent sharply back.

My device is so made that the ends of the slot or slots bear against the ring or rings on the bobbin and determine the depth to which it will sink in the slots and the snug fit of the rings or ring to the sides of the slot or slots prevents any longitudinal or angular motion of the bobbin and takes care of any side thrust.

lVhat T claim as my invention and desire to cover by Letters Patent, is:

1. A holding device for bobbins stamped from one piece of sheet metal with a holding branch, a middle portion and a tail piece so bent as'to fit the wood of the shuttle, together with side branches which are bent backward and then forward and have near their ends one or more transverse slots of such width as to receive snugly the bobbin rings and shaped at their ends to fit said rings. v

2. In a shuttle, a holding device for bobbins stamped from one piece of sheet metal having a holding branch, a middle portion bent at an angle therewith and having a base directing slot, and a tail piece so bent that the holding branch the middle portion and the tail piece closely fit the wood of the shuttle, together with side branches which are bent backward and then forward said branches being curved near their ends and having one or more transverse slots of such width as to receive snugly the bobbin rings and shaped at their ends to fit said rings the metal adjoining the ends of such slots being bent sharply backward and having tapering ring directing grooves cut therein, together with means for attaching the holder to the shuttle as described.

In testimony whereof I hereto aiiix my signature in presence of two witnesses.

ISAAC SNOW. 

